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Finding the Fourth Proportional to 561,677.63, 842,516.45 and 187,700.63

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Solution

The fourth proportional to 561,677.63, 842,516.45 and 187,700.63 is: 281,550.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,677.63 : 842,516.45 = 187,700.63 : x
  2. Step 2: Convert to fraction form
    561,677.63/842,516.45 = 187,700.63/x
  3. Step 3: Cross multiply
    561,677.63x = 842,516.45 × 187,700.63
  4. Step 4: Simplify right side
    561,677.63x = 158,140,863,299.28
  5. Step 5: Solve for x
    x = 158,140,863,299.28/561,677.63
  6. Step 6: Final answer
    x = 281,550.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.